Machine for spreading surfacing material upon-cloth and other flexible material



(No Model.)

J. TREGURTI-IA. MACHINE FOR SPREADING SURFAGING MATERIAL UPON CLOTH AND OTHER FLEXIBLE MATERIAL.

No. 279,462. Patented June 12,1883.

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Fig. 5

Witnesses:

Inventor: Jcmws Trey urifiaa,

UNITED STATES PATENT OFFI E.

JAMES TREGURTHA, OF BOSTON, MASSACHUSETTS.

MACHINE FOR SPREADING SU RFACING MATERIAL UPON-CLOTH AND OTHER FLEXIBLE MATERIAL.

' ing, taken in connection with the accompany SPECIFICATION forming part of Letters Fatent No. 279,462, dated June 12,1883. Application filed September 13, 1882. (No model.)

To all whom it may concern:

Be it known that I, JAMES TREGURTHA, a subject of the Queen of Great Britain, but now a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Machines for Spreading Surfacing Material upon Cloth or other Flexible Material, of which the following drawings, is a specification.

My invention relates to a machine for spreading a surfacing or finishing material up on cloth or other flexible material in the manufacture of artificial or imitation leather, rubber cloth, or other similar material, and has for its object a more perfect and even distribution of the coating and graduation of its thickness; and

it consists in a novel construction and arrangement of the gage bar or knife and the supports for the web or sheet of cloth or other material to be coated, which will be best understood by reference to the description of the drawings and to the claims to be hereinafter given.

Figure 1 of the drawings is a vertical longitudinal section of a machine embodying my invention. Fig. 2 is a partial side elevation of one of the side frames of the machine, and showing the spreading devices in end elevation and Fig. 3 is a transverse section of said frame, showing a portion of one end of the spreading devices in side elevation. e

A represents a roll of cloth or other flexible material to be treated, which, when unwound therefrom, is led-over the roll u, under the roll b, above the rolls 0 and d and the square up: per edges of the bars 6 and e, under the roll f, partially around the drum 9, over the roll 71, and is wound upon the roll B, as shown. The bars 6 and c are respectively secured at each end to'studs z and i, which are adjustably secured upon the fixed stand j by means of the bolts In: and A7, which pass through slots in the stands and 17 and screw into threaded holes in the stand j, as indicated in dotted lines in Fig. 2, by which means the bars 6 and 6 may be adjusted to a greater or less distance apart, according to the requirements of the particular job in hand. The gage-bar Zrests at its two ends upon set-screws Z, set in the stands j, and is secured to said stands j by thumb-screws Z, which pass through slots m in said bar and screw into threaded holes in the stand j in such a manner that said bar I may be readily ad justed vertically, or so that its lower edge shall be at a greater or less distance above the cloth or other material being run through the machine, according to the thickness of coating that is required to be deposited thereon.

I am aware that a spreading-knife has been used in combination with two supporting-rolls placed with their upper sides, over which the cloth was drawn, somewhat higher than the lower edge of the knife, so that the cloth had to descend after passing over the first roll to pass under the knife, and then ascend in order to pass over the second roll; but this arrangement is objectionable, for the reason that the tension upon the cloth is such that but a very thin coating can be spread upon the cloth; and in order to complete'the coating of the cloth it has to be run through the machine several times, and even then the warp-threads are drawn so, taut as they pass beneath the knife as to be drawn to or nearly to the front surface of the coating material, thereby very materially injuring the appearance of the finished surface of the fabric. Another disadvantage of this arrangement is that cloth having knobs '01? knots in the threads of its warp or woof cannot be successfully treated, as the knots or bunches are very likely to be left uncovered by the coating composition, thus injuring the appearance of the finished surface. These objections are entirely overcome by the use of my present invention, as it will. be seen that the cloth, instead of being strained or drawn taut across the edge of the spreading bar or knife I, is drawn taut across the upper edges of the bars 0 and c, the rolls 0 and (1 being so placed that their upper sides are below the level of the upper edges of the bars 0 and e, as shown in Fig. 1. By this means the strain upon the warp-threads tends to draw them to the under or back surface of the fabric, and thus prevent their undue prominence upon the finished face of the material, and at the same time the bar I is relieved from pressure of the fabric, so that it may be adjusted to a greater or less height above the upper surface of the material, and thus determine accuratelv IOO the thickness of the coating of the finishing compound to be spread thereon. This arrangement also permits knots or bunches in the fab ric to pass beneath the bar Z without injury to the fabric, as the cloth will. yield suflicicntly between the bars 0 and (l to permit such pas sage.

The semi-liquid or pastelike composition to be spread upon the cloth or other material. is placed thereon just in front of the bar 1, against which. it is carried by the forward movement of the cloth or other material, in the same maunor as described. in Letters Patent No. 231,692, granted to me August 31, 1880.

The mechanism for imparting motion to the several rolls and regulating the movement of the fabric may be the same described-in my previous patent above cited, or of any other suitable construction; but, as that forms no part of my present invention, it need not be described here.

The machine shown and described is arranged for coating cloth or other flexible material. in the web; but my improvements are equally well adapted to use upon machines for coating cloth or other material in shorter pieces or sheets; and hence I do not wish to be limited to its use in a machine of the precise i'ormshowu and described; but

XVhat 1' claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a machine for coating cloth or other flexible material with a semi-liquid or pastelike material, the combination. of the bars a, c, and Z, arranged and adapted to operate substanti ally as and for the purposes described.

2. In a machine for coating cloth or other flexible material with a semi-liquid or pastelike compound, the bars 0 and 6, arranged to support the material to be coated, in combina tion withthe bar 7, arranged with its lower edge above the level of the upper edges of said bars (2 and 0, and means of adjusting said bar 7 vertically, substantially as described.

3. The bars 0 and 0, arranged to be adjusted toward and from each other, in combination with the vertically adiustable bar 7, all arranged and adapted to operate substantially as described.

4. The combination of the bars 0 and e, the rolls (2 and (1, arranged with their upper sides not higher than the upper edges of said bars 0 and c, and the gage-bar Z, arranged with its lower edge above the level. of the upper edges ot' the bars a and e, substantially as described.

In testimony whereof I have signed my name to this s1 )eciiication, in the presence of two subscribing witnesses, on this 11th day of september, A. l'). 1882. l

J AMES TREGURTHA.

"Witnesses:

N. C. LOMBARD, V. E. LOMBA'RD. 

